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Chapter 5: Problem 15

Each repetition of a loop is known as a(n) __________.

Short Answer

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Answer: The term for each repetition of a loop is called an "iteration". It refers to the execution of a set of instructions within a loop that is repeated a certain number of times or until a specific condition is met.

Step by step solution

01

Terminology

The term for each repetition of a loop is an "iteration". An iteration refers to the execution of a set of instructions within a loop, which is designed to be repeated a certain number of times or until a particular condition is met.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Loop Iteration
In programming, a loop iteration is a single cycle through a block of code written inside a loop structure. Each iteration executes the code and then checks the loop's stopping condition to determine if another cycle is needed.
For example, in a basic `for` loop in C++:
  • The initialization sets the starting point.
  • The condition defines when the loop should stop.
  • The increment changes the loop variable after each iteration.
This means that every time the loop completes a run, it goes through these steps until the condition is false. Loop iteration allows repeated execution, which is useful for tasks such as processing arrays, data, or simply repeating a block of code several times. Understanding loop iterations is crucial for efficient programming and avoiding infinite loops.
Repetition Structures
Repetition structures, also called loops, are control flow statements that execute one or more statements repeatedly based on a condition. Loops can repeat a designated number of times or until a specific situation arises.
There are several types of repetition structures in C++:
  • For Loop: Used when the number of iterations is known beforehand. It's perfect for counting loops.
  • While Loop: Ideal when the number of iterations is not known in advance and depends on a condition.
  • Do-While Loop: Similar to the while loop, but ensures the loop executes at least once.
These structures help automate repetitive tasks, reducing code duplication and errors. The effective use of repetition structures leads to cleaner, more efficient code.
Control Structures in C++
Control structures are vital in programming as they dictate the execution order of statements. They help navigate the program's flow and include sequence, selection, and iteration.
C++ employs a variety of control structures, with loops being a fundamental type.
  • Sequence: Executes statements from top to bottom.
  • Selection: Includes `if`, `else`, and `switch` statements for decision-making.
  • Iteration: Consists of loops like `for`, `while`, and `do-while` that repeat code blocks.
In C++, control structures make the code flexible and dynamic, responding to different inputs and conditions. Mastery of control structures allows for robust programming, enabling the development of software capable of diverse and complex tasks.

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Most popular questions from this chapter

A(n) __________ is a special value that marks the end of a series of values.

A(n) __________ is a variable that 鈥渃ounts鈥� the number of times a loop repeats.

A loop that does not have a way of stopping is a(n) __________ loop.

T \(\mathrm{F}\) A variable may be defined in the initialization expression of the for loop.

A loop that evaluates its test expression before each repetition is a(n) __________ loop.
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